Neerslag — 2026
| Mois | Westland | Midden-Delfland | Différence |
|---|---|---|---|
| Jan | 104.5 mm | – | – |
| Fév | 66.3 mm | – | – |
| Mar | 44.1 mm | 4.7 mm | +39.4 |
| Avr | 3.2 mm | 2.7 mm | +0.5 |
| Mai | 39.8 mm | 39.8 mm | +0.0 |
| Juin | 72.8 mm | 72.8 mm | +0.0 |
| Juil | 13.9 mm | 13.9 mm | +0.0 |
| Aoû |
| 62.4 mm |
| 62.5 mm |
| -0.1 |
| Sep | 79.5 mm | 79.6 mm | -0.1 |
| Oct | 89.1 mm | 89.1 mm | +0.0 |
| Nov | 1.8 mm | 1.1 mm | +0.7 |
| Déc | – | – | – |